Charlie Shrem
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Bitcoin’s controversial figures

Charlie Shrem (center), former Bitcoin Foundation board member charged with money laundering in connection with the Silk Road drug market, at the 2014 premiere of a Bitcoin documentary he co-produced. . (Astrid Stawiarz /Getty Images)
Brock Pierce (left), controversial new member of the Bitcoin Foundation board, seen here in 2000 with his co-stars in the Disney comedy “First Kid,” Sinbad (center) and Zachery Ty Bryan (right). (RICHARD CARTWRIGHT / ABC)
Mt. Gox CEO Mark Karpeles bows in apology at a press conference as the exchange files for bankruptcy. (AP)